<template>
  <div class="login_container">
    <el-row>
      <el-col :span="12" :xs="0">10</el-col>
      <el-col :span="12" :xs="24">
        <el-form
          class="login_form"
          :model="loginForm"
          :rules="rules"
          ref="loginForms"
        >
          <h1>Hello</h1>
          <h2>欢迎来到硅谷甄选</h2>
          <el-form-item prop="username">
            <el-input
              :prefix-icon="User"
              v-model="loginForm.username"
            ></el-input>
          </el-form-item>
          <el-form-item prop="password">
            <el-input
              type="password"
              v-model="loginForm.password"
              :prefix-icon="Lock"
              show-password
            ></el-input>
          </el-form-item>
          <el-button
            :loading="loading"
            :loading-icon="Lock"
            class="login_btn"
            type="primary"
            @click="login"
          >
            登录
          </el-button>
        </el-form>
      </el-col>
    </el-row>
  </div>
</template>

<script setup lang="ts">
import { User, Lock } from '@element-plus/icons-vue'
//收集帐号与密码的数据 .收集到一个对象身上，用一下代理用项. 将来要收集的有username和password.我还可以给它个初始值
import { reactive, ref } from 'vue'
//引入用户相关的小仓库
import useUserStore from '@/store/modules/user'
import { useRouter } from 'vue-router'
import { ElNotification } from 'element-plus'
import { getTime } from '@/utils/time'
//获取用户相关的小仓库
let useStore = useUserStore()
//获取el-form组件VC实例，通过ref=loginForms
let loginForms = ref()
//获取路由器
let $router = useRouter()
//定义变量控制按钮加载效果
let loading = ref(false)
//收集帐号与密码的数据
let loginForm = reactive({ username: 'admin', password: '111111' })
//自定义校验规则的函数
const validatorUsername = (rule: any, value: any, callback: any) => {
  //value即为表单元素内容，如果符合条件callback放行通过，不符合条件callback方法，注入错误提示信息
  // if(/^\d{5,10}$/.test(value)){
  if (value.length >= 5) {
    callback()
  } else {
    callback(new Error('账号至少5位'))
  }
}
const validatorPassword = (rule: any, value: any, callback: any) => {
  if (value.length >= 6) {
    callback()
  } else {
    callback(new Error('密码至少6位'))
  }
}
//  登录按钮的回调
const login = async () => {
  //保证全部表单项校验通过后再发请求
  await loginForms.value.validate()
  //点击登录后干什么？
  //①通知仓库发登录请求（请求成功展示数据；请求失败弹出登录失败信息）
  // 异步请求那边已经把结果构造成了promise,我这里直接.then或者 try catch就行了
  //     let result = useStore.userLogin(loginForm)  console.log(result);
  loading.value = true
  try {
    await useStore.userLogin(loginForm)
    //编程式导航跳转
    $router.push('/')
    ElNotification({
      type: 'success',
      message: '欢迎老板敲代码',
      title: `hi,${getTime()} 好`,
    })
    loading.value = false
  } catch (error) {
    //登录失败，加载效果结束
    loading.value = false
    ElNotification({
      type: 'error',
      message: (error as Error).message,
    })
  }
}

//定义表单校验需要配置对象
const rules = {
  username: [
    // {  我现在要用自定义校验规则
    //   required:true,
    //   min:5,max:10,message:'帐号长度最少5',trigger:'change'
    // }
    {
      trigger: 'change',
      validator: validatorUsername,
    },
  ],
  password: [
    {
      trigger: 'change',
      validator: validatorPassword,
    },
  ],
}
</script>

<style scoped lang="scss">
.login_container {
  width: 100%;
  height: 100vh;
  background: url('@/assets/images/background.jpg') no-repeat;
  background-size: cover;
  .login_form {
    position: relative;
    width: 80%;
    top: 30vh;
    background: url('@/assets/images/login_form.png') no-repeat;
    background-size: cover;
    padding: 40px;
    h1 {
      color: white;
      font-size: 40px;
    }

    h2 {
      font-size: 20px;
      color: white;
      margin: 20px 0;
    }
    .login_btn {
      width: 100%;
    }
  }
}
</style>
